Add-On Board for Breathalyzer Applications

Add-On Board for Breathalyzer Applications

MikroElektronika’s Mikroe-3097 Alcohol 2 Click is equipped with the SPEC amperometric gas sensor. This sensor reacts electrochemically with ethanol gas and is supported by the LMP91000 high-precision integrated analog front-end (AFE) IC. The other on-board modules include Microchip Technology’s MCP3221 12-bit SAR ADC and MCP1501 high precision buffered reference, as well as Texas Instruments’ OPA344 operational amplifier. This add-on board provides the reference voltage required by the sensor and offers a choice between analog or digital outputs.